Dark Energy May Not Be Constant After All, New Supernova Survey Suggests

Dark energy debunked? Cosmic acceleration may be an illusion

A new analysis of more than 1,700 supernovae is questioning whether the universe is really accelerating at all. After accounting for the ages of the stars that produce these explosions, researchers found signs that cosmic expansion may actually be slowing. They also argue that the apparent acceleration changes with direction, which would be difficult to explain with dark energy. Other cosmologists dispute the conclusion, setting up a major test …

Dark Energy May Not Be Constant After All, New Supernova Survey Suggests

Astronomers have combined 2,884 Type Ia supernovae -- which are used to measure cosmic distances -- with cosmic microwave background and galaxy-mapping data, deepening cracks in the standard ‘cosmological constant’ model. The post Dark Energy May Not Be Constant After All, New Supernova Survey Suggests appeared first on Sci.News: Breaking Science News.

New supernova research suggests that dark energy may not be constant

Astronomers assembled 2,884 pieces to study Type Ia supernovae, which are utilized to calculate distances in the universe. This process involves analyzing data from cosmic microwave background radiation and galaxy mapping, leading to advancements in the understanding of the “cosmological constant” model. This is an artist’s concept of a type Ia supernova exploding in intergalactic [...]

Big supernova dataset challenges dark energy theory

The most comprehensive catalogue of exploding white dwarf stars ever assembled has revealed new clues about dark energy, the mysterious force driving the universe’s accelerating expansion.